A mixture of aluminum and zinc weighing 167g was completely, Chemistry

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A mixture of aluminum and zinc weighing 167g was completely

a) A mixture of aluminum and zinc weighing 1.67g was completely dissolved in acid to give 1.69L of hydrogen gas measure at STP. What is the weight of aluminum in the original mixture?

The equations are: 2Al + 6H^+ -> 3H2 + 2Al^3+
Zn + 2H^+ -> H2 + Zn^2+

b) Will indium display the photoelectric effect with UV light? With infrared light?

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Chemistry: A mixture of aluminum and zinc weighing 167g was completely

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